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US LLC (Wyoming) · via Mercury (banking-only)·🌐Founder profile

Forming a Wyoming LLC for Korean E-commerce Sellers

VerifiedJul 2026
EligibilityEligible
Setup timeline14–45days
Year-1 total$0.00

Korean e-commerce sellers can establish a Wyoming LLC to access the US market while benefiting from a 0% state income tax environment. This structure requires compliance with both US federal tax reporting and South Korean National Tax Service requirements.

The process involves state registration, obtaining an EIN from the IRS, and opening a business bank account through platforms like Mercury. Founders must maintain accurate records to satisfy both US information return obligations and Korean tax treaty provisions.

§ 01Cost of ownership

Model the full outlay, not just the setup fee

Renewal costs sneak up on non-resident founders. Compare year-1 filing against a 3-year total to see the real bill.
Currency · USD (live FX)
2-year cost of ownership
$0.00
$0.00/month amortized·USD @ live FX
Time horizon
Line items
Amount
  • SetupMercury (banking-only) setup
    $0.00
  • AnnualYear 2 renewal
    $0.00
Total$0.00
§ 02Tax residency · Korean E-commerce Sellers

What the tax authority sees

US federal / local status

Wyoming LLCs are treated as pass-through entities for US federal tax purposes, where non-US owners are subject to US tax only on income effectively connected with a US trade or business (ETBUS).

Home-country rule

National Tax Service; foreign-source income reporting per Income Tax Act Article 3; Korea has US tax treaty (10% treaty rate for royalties).

Editorial verdict

Use Wyoming for privacy and low state fees, but ensure your Korean tax accountant reviews the US-Korea tax treaty to manage potential double taxation on dividends.

Key compliance risks
  • 01Form 5472 and 1120 filing requirements for foreign-owned single-member LLCs
  • 02Potential $25,000 penalty for failure to file timely IRS information returns
  • 03NTS scrutiny on foreign-source income reporting under Income Tax Act Article 3
§ 03Setup timeline

From filing to funded bank account

Setup timeline
14–45days total, 3 phases
Milestone check
Filing · Tax ID · Banking
d0
d11
d23
d34
d45
01FilingMercury (banking-only) submits formation docs
d0–d16
02Tax ID / EINIRS EIN issuance
d14–d34
03BankingBusiness account approved & funded
d27–d45
§ 04Head-to-head

US LLC (Wyoming) vs Estonia OÜ (e-Residency)

US LLC (Wyoming)
LLC
Estonia OÜ (e-Residency)
Entity
LLC
Setup cost
$102.00
$205.20
Annual
$60.00
$129.60
Local director
Remote OK
Remote OK
Physical presence
Remote OK
Remote OK
Tax regime
0% state tax; federal only on US-source income
20% only on distributed profit; 0% on retained earnings
§ 05Questions founders actually ask

FAQ

No. Wyoming LLC formation can be completed entirely remotely. You will need a registered agent in Wyoming to accept legal documents on your behalf.
Next step

Start filing with Mercury (banking-only)

Formation typically completes in 2–3 weeks. Use the promo below, then click through to begin the checklist directly on the platform.